Do you usually wax ? If you don't I wouldn't recommend it - people tend to have better results if it's something they usually do rather than doing it once before a convention and having a bad reaction because they don't do it often. If I was going to do it, I'd do it 2-3 days before - it's not going to grow out past the skin in that amount of time unless we're talking about some really zealous male facial hair - that way your skin has time to settle down.
I don't have any quick-fix solutions for acne. I find that making sure to change whatever pillow cover or blanket is touching my face at night helps more than anything.
Actually in the pipes:
- Remaking Ser Loras doublet.
- Luke Skywalker, A New Hope
- Wind Waker starter costume in swim material
Eventually: Paul from Dune, Faramir, Harry Sullivan